You would not want to copy over the entire file to the discipline, just the <view> and <viewdef> of the form you wish to modify!
From our guide on Editing Forms:
common.views.xmlandglobal.views.xmlcontain commonly used tables.That is, they are tables that are shared by most of the disciplines. For example, the Accession table is in the
common.views.xmlfile. Removing thestatusfield from the Accession table will remove the field in the Accession table for every discipline, unless you copy over the<view>and<viewdef>components into your discipline-specific form definition before making changes.The commonly used tables were not divided between the two files according to any particular rationale; therefore there is no way to intuit what table will be in either without checking.